JPH09137158A - Fluorescent film and its production - Google Patents
Fluorescent film and its productionInfo
- Publication number
- JPH09137158A JPH09137158A JP29641895A JP29641895A JPH09137158A JP H09137158 A JPH09137158 A JP H09137158A JP 29641895 A JP29641895 A JP 29641895A JP 29641895 A JP29641895 A JP 29641895A JP H09137158 A JPH09137158 A JP H09137158A
- Authority
- JP
- Japan
- Prior art keywords
- film
- phosphor
- fluorescent film
- fluorescent
- europium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラス等の基板上
に形成された、蛍光体を含有する蛍光膜、特に、蛍光表
示管やプラズマデイスプレイパネルに用いられる反射型
の蛍光膜、及び、その製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent film containing a fluorescent material, which is formed on a substrate such as glass, and in particular, a reflective fluorescent film used for a fluorescent display tube or a plasma display panel, and the same. It relates to a manufacturing method.
【０００２】[0002]
【従来の技術】蛍光体は、ＣＲＴ、蛍光灯、蛍光表示
管、プラズマデイスプレイ、ＦＥＤ、Ｘ線増感紙、夜光
塗料等様々な分野で使用されている。蛍光体は、本来粉
末であるが、粉末のまま使用されることは少なく、これ
らの応用製品は全て蛍光体を蛍光膜などの形態で使用さ
れている。2. Description of the Related Art Phosphors are used in various fields such as CRTs, fluorescent lamps, fluorescent display tubes, plasma displays, FEDs, X-ray intensifying screens and luminous paints. Although the phosphor is originally a powder, it is rarely used as it is, and all of these applied products use the phosphor in the form of a phosphor film or the like.
【０００３】蛍光膜は、蛍光体の励起源と、その発光を
見る視点と、蛍光膜自身の光学的配置により、反射型と
透過型に分類できる。即ち、反射型は、励起源と、視点
が蛍光膜に対して同じ側にあり、透過型は、それらが蛍
光膜に対して反対側にあるものである。蛍光表示管やプ
ラズマデイスプレイは、反射型の蛍光膜を使用したもの
が多く使用されている。透過型の代表的なものは、ＣＲ
Ｔや蛍光灯である。これらの蛍光膜の発光特性は、その
ままその応用製品の特性に反映するので、それを向上す
ることは重要なことである。The fluorescent film can be classified into a reflective type and a transmissive type, depending on the excitation source of the phosphor, the viewpoint of viewing the emitted light, and the optical arrangement of the phosphor film itself. That is, the reflection type has the viewpoint on the same side of the fluorescent film as the excitation source, and the transmission type has the viewpoint on the opposite side of the fluorescent film. A fluorescent display tube and a plasma display that use a reflection type fluorescent film are often used. The typical transmissive type is CR
T and fluorescent lamps. It is important to improve the emission characteristics of these fluorescent films because they directly reflect the characteristics of the applied products.
【０００４】従来、蛍光表示管の青色成分の蛍光体は、
ＺｎＯ：Ｚｎや、ＺｎＳ：Ａｇに導電性のあるＩｎ2 Ｏ
3 などを混合したものが使われている。しかし、前者
は、発光色が青緑色で青色フィルターをかける必要があ
り、後者は、硫化物であるため、劣化しやすいという問
題があった。そこで、蛍光表示管用の蛍光膜に、２価の
ユーロピウム付活のバリウムマグネシウムアルミン酸塩
蛍光体を使用することが試みられてきたが、輝度が低く
実用に供し得なかった。Conventionally, the phosphor of the blue component of the fluorescent display tube is
ZnO: Zn and, ZnS: a conductivity Ag an In 2 O
A mixture of 3 is used. However, the former has a problem that the emission color is blue-green and it is necessary to apply a blue filter, and the latter is a sulfide, and thus is easily deteriorated. Therefore, it has been attempted to use a divalent europium-activated barium magnesium aluminate phosphor for a fluorescent film for a fluorescent display tube, but it has low brightness and cannot be put to practical use.
【０００５】一方、プラズマデイスプレイの青色成分に
は、従来から、バリウムマグネシウムアルミン酸塩蛍光
体が使用されており、この蛍光体の劣化の改良や輝度の
向上等の様々な改良が試みられ、ITE Technical Report
18(1994) 55-60 には、ＢａＭｇＡｌ10Ｏ17：Ｅｕ蛍光
体が発光色の経時変化が少ないと記載されている。しか
し、その輝度は未だ十分といえず、さらに明るい蛍光
体、蛍光膜の出現が望まれていた。On the other hand, a barium magnesium aluminate phosphor has been conventionally used for the blue component of the plasma display, and various improvements such as improvement of deterioration of the phosphor and improvement of brightness have been attempted. Technical Report
18 (1994) 55-60, it is described that the BaMgAl 10 O 17 : Eu phosphor has little change in emission color with time. However, the brightness is still not sufficient, and the appearance of brighter phosphors and phosphor films has been desired.
【０００６】[0006]
【発明が解決しようとする課題】そこで、本発明は、反
射型の蛍光表示管やプラズマデイスプレイなどに適し
た、２価のユーロピウム付活のバリウムマグネシウムア
ルミン酸塩蛍光体を含有する高輝度蛍光膜、及び、その
製造方法を提供しようとするものである。Therefore, the present invention is directed to a high-brightness phosphor film containing a divalent europium-activated barium magnesium aluminate phosphor, which is suitable for a reflection type fluorescent display tube, a plasma display and the like. And a method for manufacturing the same.
【０００７】[0007]
【課題を解決するための手段】本発明者らは、以上の目
的を達成するために鋭意検討した結果、２価のユーロピ
ウム付活のバリウムマグネシウムアルミン酸塩蛍光体に
おいて、従来使用されたことのない、特定の比表面積を
有する蛍光体を用い、厚膜印刷法で蛍光膜を形成するこ
とにより、高輝度の反射型蛍光膜が得られることを見い
だし、下記の構成を有する本発明を完成するに至った。Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventors have found that the divalent europium-activated barium magnesium aluminate phosphor has been conventionally used. It was found that a high-brightness reflection type fluorescent film can be obtained by forming a fluorescent film by a thick film printing method using a phosphor having a specific surface area that is not present, and completes the present invention having the following configuration Came to.
【０００８】(1) ２価のユーロピウム付活のバリウムマ
グネシウムアルミン酸塩蛍光体を含有する蛍光膜におい
て、前記蛍光体のブレーン式比表面積が８０００〜１３
０００ｃｍ2 ／ｇの範囲にあることを特徴とする蛍光
膜。(1) In a phosphor film containing a divalent europium-activated barium magnesium aluminate phosphor, the Blaine specific surface area of the phosphor is 8000 to 13
A phosphor film having a range of 000 cm 2 / g.
【０００９】(2) 前記２価のユーロピウム付活のバリウ
ムマグネシウムアルミン酸塩蛍光体が、下記組成式で表
されるものであるを特徴とする上記(1) 記載の蛍光膜。 Ｂａ1-x Ｅｕx ＭｇＡｌ10Ｏ17 ０．０５≦ｘ≦０．５(2) The phosphor film according to (1) above, wherein the divalent europium-activated barium magnesium aluminate phosphor is represented by the following composition formula. Ba 1-x Eu x MgAl 10 O 17 0.05 ≦ x ≦ 0.5
【００１０】(3) 前記蛍光膜の膜厚が５〜３０ミクロン
の範囲にあることを特徴とする上記(1) 又は(2) 記載の
蛍光膜。(3) The fluorescent film according to the above (1) or (2), wherein the film thickness of the fluorescent film is in the range of 5 to 30 μm.
【００１１】(4) ブレーン式比表面積が８０００〜１３
０００ｃｍ2 ／ｇの範囲にある２価のユーロピウム付活
のバリウムマグネシウムアルミン酸塩蛍光体を含有する
印刷用インクを使用し、厚膜印刷法で蛍光膜を形成する
ことを特徴とする蛍光膜の製造方法。(4) Blaine type has a specific surface area of 8000 to 13
A phosphor film is formed by a thick film printing method using a printing ink containing a divalent europium-activated barium magnesium aluminate phosphor in the range of 000 cm 2 / g. Production method.
【００１２】[0012]
【発明の実施の形態】本発明者らは、バリウムマグネシ
ウムアルミン酸塩蛍光体の比表面積に着目し、反射型蛍
光膜について検討した結果、ブレーン式の比表面積が８
０００ｃｍ2／ｇ以上の蛍光体を用いると、緻密な膜構
造を有する蛍光膜を作ることができ、輝度を大幅に向上
させることが可能であることを見いだした。なお、１３
０００ｃｍ2 ／ｇ以上のバリウムマグネシウムアルミン
酸塩蛍光体を得ようとすると、結晶成長が不十分とな
り、輝度の低い蛍光体しか得られなかった。BEST MODE FOR CARRYING OUT THE INVENTION The present inventors have focused on the specific surface area of barium magnesium aluminate phosphor and studied a reflective phosphor film.
It was found that when a phosphor of 000 cm 2 / g or more is used, a phosphor film having a dense film structure can be formed and the brightness can be significantly improved. Note that 13
When an attempt was made to obtain a barium magnesium aluminate phosphor of 000 cm 2 / g or more, crystal growth became insufficient and only a phosphor having low brightness was obtained.
【００１３】本発明で蛍光体の比表面積をするために、
ブレーン式比表面積測定法を採用した理由は、この方法
が蛍光膜に近似した蛍光体の圧縮体を空気が透過する時
間を基にして測定する方法であるため、緻密な膜構造を
有する蛍光膜を得るための最適な方法であると考えたか
らである。In order to control the specific surface area of the phosphor in the present invention,
The reason why the Blaine-type specific surface area measurement method is adopted is that this method is based on the time taken for air to permeate a compressed body of a phosphor close to the phosphor film, and thus the phosphor film having a dense film structure is used. Because I thought it was the best way to get.
【００１４】本発明の方法では、図１に記載の東京理化
社製のブレーン空気透過装置粉末度測定器を用いた。ま
ず、セル内に蛍光体粉末を入れ、プランジャーで徐々に
圧縮し、一定の空隙率を有する圧縮体を形成し、このセ
ルをマノメーターの所定の位置に密着させ、Ｕ字管の液
頭をアスピレーターによりＡ標線まで上げ、コックを閉
じ、液頭がＢ標線からＣ標線まで降下する時間を正確に
測定して下記式より比表面積を求めるものである。 S ＝ S0(ρ0/ρ)(t/t0)1/2 ・(1-e0)/e0 3/2・e3/2/(1-e) S : 未知試料の比表面積 S0 : 標準試料の比表面積 ρ: 未知試料の比重 ρ0 : 標準試料の比重 e : 未知試料の空隙率 e0 : 未知試料の空隙率 t : 未知試料の液頭の降下時間（秒） t0 : 未知試料の液頭の降下時間（秒）In the method of the present invention, the Blaine air permeation apparatus fineness measuring instrument manufactured by Tokyo Rika Co., Ltd. shown in FIG. 1 was used. First, the phosphor powder is put into the cell and gradually compressed by a plunger to form a compressed body having a constant porosity, and the cell is brought into close contact with a predetermined position of the manometer to fix the liquid head of the U-shaped tube. The specific surface area is obtained from the following formula by accurately raising the time to the A mark line with an aspirator, closing the cock, and dropping the liquid head from the B mark line to the C mark line. S = S 0 (ρ 0 / ρ) (t / t 0 ) 1/2・ (1-e 0 ) / e 0 3/2・ e 3/2 / (1-e) S: Specific surface area of unknown sample S 0 : Specific surface area of standard sample ρ: Specific gravity of unknown sample ρ 0 : Specific gravity of standard sample e: Porosity of unknown sample e 0 : Porosity of unknown sample t: Drop time of liquid head of unknown sample (sec) t 0 : Drop time of liquid head of unknown sample (second)
【００１５】本発明の蛍光体は、発光輝度や劣化の面か
ら下記組成式で表されるものが望ましい。 Ｂａ1-x Ｅｕx ＭｇＡｌ10Ｏ17 ０．０５≦ｘ≦０．５The phosphor of the present invention is preferably represented by the following composition formula from the viewpoint of emission brightness and deterioration. Ba 1-x Eu x MgAl 10 O 17 0.05 ≦ x ≦ 0.5
【００１６】一般に、反射型蛍光膜は、励起源のエネル
ギーを十分に吸収し、発光を反対側に逃がさないため
に、十分な膜厚が必要である。一方、必要以上の膜厚
は、高価な蛍光体を無駄に使用することになる。そこ
で、本発明では、ブレーン式比表面積が８０００〜１３
０００ｃｍ2 ／ｇの範囲にある２価ユーロピウム付活の
バリウムマグネシウムアルミン酸塩蛍光体を、膜厚５〜
３０ミクロンの範囲の蛍光膜として形成することが望ま
しい。このような蛍光膜を比較的低コストで簡便に作製
する方法として、厚膜印刷方法が採用される。In general, the reflection type fluorescent film needs to have a sufficient film thickness in order to sufficiently absorb the energy of the excitation source and not let the emitted light escape to the opposite side. On the other hand, if the film thickness is more than necessary, the expensive phosphor will be wasted. Therefore, in the present invention, the Blaine type specific surface area is 8000 to 13
A divalent europium-activated barium magnesium aluminate phosphor in the range of 000 cm 2 / g is applied to a film thickness of 5 to 5.
It is desirable to form it as a fluorescent film in the range of 30 microns. A thick film printing method is adopted as a method for easily producing such a fluorescent film at a relatively low cost.
【００１７】本発明に用いるバリウムマグネシウムアル
ミン酸塩蛍光体は、次のように合成することができる。
蛍光体原料として、 （１）酸化バリウム、水酸化バリウム、炭酸バリウム等
のバリウム化合物 （２）酸化ユーロピウム、フッ化ユーロピウム等のユー
ロピウム化合物 （３）酸化マグネシウム、水酸化マグネシウム、炭酸マ
グネシウム等のマグネシウム化合物 （４）酸化アルミニウム、水酸化アルミニウム等のアル
ミニウム化合物 を所定量秤量し、フッ化バリウム、フッ化アルミニウ
ム、フッ化マグネシウム等のフラックスを配合し、原料
混合物を十分に混合する。得られた混合物を坩堝に充填
し、還元性雰囲気にて、１２００〜１７００℃で２〜４
０時間かけて１回以上焼成する。The barium magnesium aluminate phosphor used in the present invention can be synthesized as follows.
(1) Barium compounds such as barium oxide, barium hydroxide and barium carbonate (2) Europium compounds such as europium oxide and europium fluoride (3) Magnesium compounds such as magnesium oxide, magnesium hydroxide and magnesium carbonate (4) A predetermined amount of an aluminum compound such as aluminum oxide or aluminum hydroxide is weighed, a flux of barium fluoride, aluminum fluoride, magnesium fluoride or the like is mixed, and the raw material mixture is sufficiently mixed. The obtained mixture was filled in a crucible and was heated at 1200 to 1700 ° C. for 2 to 4 in a reducing atmosphere.
Bake once or more over 0 hours.
【００１８】還元性雰囲気を得る方法としては、原料
を充填した坩堝をカーボンを充填した坩堝内に埋め込む
方法、黒鉛の塊や、ヤシガラ等の炭素物質を原料の充
填された坩堝内に入れる方法がある。還元を確実にする
ために、更にこれらの坩堝を窒素又は窒素水素混合ガス
の雰囲気中で焼成しても良い。また、これらの雰囲気に
水蒸気が含まれていても良い。As a method for obtaining a reducing atmosphere, there is a method of embedding a crucible filled with a raw material in a crucible filled with carbon, or a method in which a lump of graphite or a carbon substance such as coconut husk is put in the crucible filled with the raw material. is there. In order to ensure the reduction, these crucibles may be further fired in an atmosphere of nitrogen or a nitrogen-hydrogen mixed gas. Further, water vapor may be contained in these atmospheres.
【００１９】この焼成物に分散、水洗、乾燥、篩を行
い、本発明に用いる青色発光のバリウムマグネシウムア
ルミン酸塩蛍光体を得ることができる。なお、焼成温
度、焼成時間、フラックス量、アルミニウム化合物種、
分散強度を変化することで、所望の比表面積の蛍光体を
得ることができる。The fired product is dispersed, washed with water, dried, and sieved to obtain the blue-emitting barium magnesium aluminate phosphor used in the present invention. The firing temperature, firing time, flux amount, aluminum compound species,
A phosphor having a desired specific surface area can be obtained by changing the dispersion strength.
【００２０】本発明の蛍光膜は、スクリーン印刷法やバ
ーコートを用いたベタ印刷法による厚膜印刷法で作製す
ることができる。これらの印刷を行うための、インク用
溶剤としては、例えば、蛍光体量を１００重量部とし
て、アルファテルピネオールやブチルカルビトールが５
０〜３００重量部使用される。樹脂成分としては、エチ
ルセルロースやエチレン酢酸ビニル共重合体が１から３
０重量部用いられる。これらを３本ロール等混練機を用
いて混合することでインクを得ることができる。The fluorescent film of the present invention can be produced by a screen printing method or a thick film printing method by a solid printing method using a bar coat. As an ink solvent for performing these printings, for example, when the amount of the phosphor is 100 parts by weight, alpha terpineol or butyl carbitol is 5 parts by weight.
0 to 300 parts by weight are used. As the resin component, 1 to 3 of ethyl cellulose and ethylene vinyl acetate copolymer are used.
0 parts by weight are used. Ink can be obtained by mixing these using a kneader such as a three-roll mill.
【００２１】このインクを＃１０〜＃１４のバーコート
を使用してガラス板にベタ印刷し、１００〜１５０℃で
１時間程度乾燥し、４００〜５５０℃で１〜２時間ベー
キングして有機成分を焼成して本発明の蛍光膜を得る。
パターン形成をする場合は、スクリーン印刷で行う。This ink was solid-printed on a glass plate using a # 10 to # 14 bar coat, dried at 100 to 150 ° C. for about 1 hour, and baked at 400 to 550 ° C. for 1 to 2 hours to obtain organic components. Is baked to obtain the fluorescent film of the present invention.
When forming a pattern, screen printing is used.
【００２２】本発明において、反射型蛍光膜の簡便な評
価方法として、蛍光膜に殺菌灯の光を照射して蛍光体を
励起して発光輝度を測定する方法を採用した。In the present invention, as a simple evaluation method of the reflection type fluorescent film, a method of irradiating the fluorescent film with light of a germicidal lamp to excite the phosphor and measuring the emission brightness is adopted.
【００２３】[0023]
〔実施例１〕 ＢａＣＯ3 ０．９ mol Ｅｕ2 Ｏ3 ０．０５ mol ３ＭｇＣＯ3 ・Ｍｇ（ＯＨ）2 ０．２５ mol Ａｌ2 Ｏ3 （γタイプ） ５．０ mol ＡｌＦ3 ０．００４ mol 上記原料を混合し、坩堝に充填し、さらに、黒鉛の塊を
入れた坩堝を原料の上に載せ、蓋をして水蒸気を含んだ
窒素雰囲気中で最高温度１４５０℃で昇降温時間を含め
２４時間かけて焼成した。次いで、焼成粉を分散、洗
浄、乾燥、篩の処理を行い、ブレーン式比表面積が１０
４００ｃｍ2 ／ｇのＢａ0.9 Ｅｕ0.1 ＭｇＡｌ10Ｏ17、
２価のユーロピウム付活青色発光バリウムマグネシウム
アルミン酸塩蛍光体を得た。[Example 1] BaCO 3 0.9 mol Eu 2 O 3 0.05 mol 3 MgCO 3 .Mg (OH) 2 0.25 mol Al 2 O 3 (γ type) 5.0 mol AlF 3 0.004 mol Mix the raw materials, fill the crucible, place the crucible containing the lump of graphite on the raw material, put the lid on it, and in the nitrogen atmosphere containing water vapor at the maximum temperature of 1450 ° C for 24 hours including the heating / cooling time. It burned over. Next, the calcined powder is dispersed, washed, dried, and sieved so that the Blaine type specific surface area is 10
400 cm 2 / g of Ba 0.9 Eu 0.1 MgAl 10 O 17 ,
A divalent europium-activated blue light emitting barium magnesium aluminate phosphor was obtained.
【００２４】この蛍光体５０ｇにアルファテルピネオー
ル１００ｇ、及びエチレン酢酸ビニル共重合体２５ｇを
スパチュラで予備混合した後、３本ロールを用いて、５
分間分散処理することにより青色蛍光膜形成用インキを
調製した。このインクを＃１０のバーコートを用いてガ
ラス基板上に、ベタで塗布し１２０℃で１０分間乾燥し
た後、４５０℃で３０分間大気雰囲気で焼成することに
よって有機成分を除去し、１５ミクロン厚さの蛍光膜を
得た。この蛍光膜に殺菌灯の紫外線を照射し、反射法で
発光輝度を測定したところ、下記比較例１の蛍光膜の発
光輝度を１００％として１１５％であった。50 g of this phosphor was premixed with 100 g of alpha terpineol and 25 g of an ethylene vinyl acetate copolymer with a spatula, and then 5 rolls were formed using a three-roll mill.
An ink for forming a blue fluorescent film was prepared by performing a dispersion treatment for a minute. This ink was coated on a glass substrate using a # 10 bar coat in a solid manner, dried at 120 ° C. for 10 minutes, and then baked at 450 ° C. for 30 minutes in an air atmosphere to remove the organic components, and a thickness of 15 μm. To obtain a fluorescent film. When this fluorescent film was irradiated with ultraviolet rays from a germicidal lamp and the emission brightness was measured by the reflection method, it was 115% with the emission brightness of the fluorescent film of Comparative Example 1 below as 100%.
【００２５】〔比較例１〕 ＢａＣＯ3 ０．９ mol Ｅｕ2 Ｏ3 ０．０５ mol ３ＭｇＣＯ3 ・Ｍｇ（ＯＨ）2 ０．２５ mol Ａｌ2 Ｏ3 （γタイプ） ５．０ mol ＡｌＦ3 ０．０１ mol 上記原料を用い、実施例１と同様の処理を行い、ブレー
ン式比表面積が６３００ｃｍ2 ／ｇのＢａ0.9 Ｅｕ0.1
ＭｇＡｌ10Ｏ17、２価のユーロピウム付活青色発光バリ
ウムマグネシウムアルミン酸塩蛍光体を得た。この蛍光
体を用いて実施例１と同様にして１５ミクロン厚さの蛍
光膜を得た。この蛍光膜に殺菌灯の紫外線を照射したと
きの反射法による発光輝度は１００％であった。Comparative Example 1 BaCO 3 0.9 mol Eu 2 O 3 0.05 mol 3 MgCO 3 .Mg (OH) 2 0.25 mol Al 2 O 3 (γ type) 5.0 mol AlF 3 0. 01 mol Using the above raw materials, the same treatment as in Example 1 was carried out, and Ba 0.9 Eu 0.1 having a Blaine type specific surface area of 6300 cm 2 / g.
A MgAl 10 O 17 , divalent europium-activated blue light emitting barium magnesium aluminate phosphor was obtained. Using this phosphor, a phosphor film having a thickness of 15 μm was obtained in the same manner as in Example 1. When this fluorescent film was irradiated with the ultraviolet rays of a germicidal lamp, the emission luminance by the reflection method was 100%.
【００２６】〔比較例２〕 ＢａＣＯ3 ０．９ mol Ｅｕ2 Ｏ3 ０．０５ mol ３ＭｇＣＯ3 ・Ｍｇ（ＯＨ）2 ０．２５ mol Ａｌ2 Ｏ3 （γタイプ） ５．０ mol ＡｌＦ3 ０．００２ mol 上記原料を用い、実施例１と同様の処理を行い、ブレー
ン式比表面積が１４０００ｃｍ2 ／ｇのＢａ0.9 Ｅｕ
0.1 ＭｇＡｌ10Ｏ17、２価のユーロピウム付活青色発光
バリウムマグネシウムアルミン酸塩蛍光体を得た。この
蛍光体を用いて実施例１と同様にして１５ミクロン厚さ
の蛍光膜を得た。この蛍光膜に殺菌灯の紫外線を照射し
たときの反射法による発光輝度は９８％であった。Comparative Example 2 BaCO 3 0.9 mol Eu 2 O 3 0.05 mol 3 MgCO 3 .Mg (OH) 2 0.25 mol Al 2 O 3 (γ type) 5.0 mol AlF 3 0. 002 mol Ba 0.9 Eu having a Blaine type specific surface area of 14000 cm 2 / g was treated in the same manner as in Example 1 using the above raw materials.
A 0.1 MgAl 10 O 17 , divalent europium activated blue light emitting barium magnesium aluminate phosphor was obtained. Using this phosphor, a phosphor film having a thickness of 15 μm was obtained in the same manner as in Example 1. When this fluorescent film was irradiated with ultraviolet rays from a germicidal lamp, the light emission luminance by the reflection method was 98%.
【００２７】〔実施例２〜５〕表１に示す原料及び焼成
温度で蛍光体を焼成し、実施例１と同様の処理を施して
表１の蛍光体を得た。蛍光体の比表面積は表１に併記し
た。この蛍光体を表２に記載のバーコーターで塗布し、
得られた蛍光膜の膜厚と、蛍光膜に殺菌灯の紫外線を照
射したときの、反射法による発光輝度を表２に示した。[Examples 2 to 5] The phosphors were fired at the raw materials and firing temperatures shown in Table 1 and were treated in the same manner as in Example 1 to obtain the phosphors shown in Table 1. The specific surface area of the phosphor is also shown in Table 1. This phosphor was applied with the bar coater shown in Table 2,
Table 2 shows the film thickness of the obtained fluorescent film and the emission luminance by the reflection method when the fluorescent film was irradiated with ultraviolet rays of a germicidal lamp.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【表２】 [Table 2]
【００３０】[0030]
【発明の効果】本発明は、上記の構成を採用することに
より、反射型の蛍光表示管やプラズマデイスプレイ等に
適した発光輝度の高い青色の２価のユーロピウム付活青
色発光バリウムマグネシウムアルミン酸塩蛍光体の蛍光
膜を得ることができるようになった。EFFECTS OF THE INVENTION The present invention, by adopting the above structure, is a blue divalent europium-activated blue light emitting barium magnesium aluminate having a high emission brightness and suitable for a reflection type fluorescent display tube, a plasma display and the like. It has become possible to obtain a phosphor film of a phosphor.
【図１】ブレーン空気透過装置粉末度測定器の概念図で
ある。FIG. 1 is a conceptual diagram of a Blaine air permeation apparatus fineness measuring device.
Claims (4)
ネシウムアルミン酸塩蛍光体を含有する蛍光膜におい
て、前記蛍光体のブレーン式比表面積が８０００〜１３
０００ｃｍ2 ／ｇの範囲にあることを特徴とする蛍光
膜。1. A phosphor film containing a divalent europium-activated barium magnesium aluminate phosphor having a Blaine specific surface area of 8000 to 13
A phosphor film having a range of 000 cm 2 / g.
マグネシウムアルミン酸塩蛍光体が、下記組成式で表さ
れるものであるを特徴とする請求項１記載の蛍光膜。 Ｂａ1-x Ｅｕx ＭｇＡｌ10Ｏ17 ０．０５≦ｘ≦０．５2. The phosphor film according to claim 1, wherein the divalent europium-activated barium magnesium aluminate phosphor is represented by the following composition formula. Ba 1-x Eu x MgAl 10 O 17 0.05 ≦ x ≦ 0.5
範囲にあることを特徴とする請求項１又は２記載の蛍光
膜。3. The fluorescent film according to claim 1, wherein the film thickness of the fluorescent film is in the range of 5 to 30 μm.
００ｃｍ2 ／ｇの範囲にある２価のユーロピウム付活の
バリウムマグネシウムアルミン酸塩蛍光体を含有する印
刷用インクを使用し、厚膜印刷法で蛍光膜を形成するこ
とを特徴とする蛍光膜の製造方法。4. A Blaine type specific surface area of 8000 to 130
A printing film containing a divalent europium-activated barium magnesium aluminate phosphor in the range of 00 cm 2 / g is used to form a phosphor film by a thick film printing method. Production method.
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|---|---|---|---|
| JP29641895A JP3763028B2 (en) | 1995-11-15 | 1995-11-15 | Fluorescent film and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29641895A JP3763028B2 (en) | 1995-11-15 | 1995-11-15 | Fluorescent film and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| JPH09137158A true JPH09137158A (en) | 1997-05-27 |
| JP3763028B2 JP3763028B2 (en) | 2006-04-05 |
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ID=17833294
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29641895A Expired - Lifetime JP3763028B2 (en) | 1995-11-15 | 1995-11-15 | Fluorescent film and manufacturing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047010A (en) * | 2000-07-28 | 2002-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing barium complex metallic oxide powder |
| EP1223600A2 (en) * | 1998-06-15 | 2002-07-17 | Matsuhita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics |
| JP2002275464A (en) * | 2001-03-21 | 2002-09-25 | Kasei Optonix Co Ltd | Aluminate fluorescent substance, fluorescent paste composition and vacuum ultraviolet ray-excited light- emitting element |
| WO2022014521A1 (en) * | 2020-07-16 | 2022-01-20 | 住友化学株式会社 | Fluorescent substance |
| WO2022014522A1 (en) * | 2020-07-16 | 2022-01-20 | 住友化学株式会社 | Fluorescent substance |
-
1995
- 1995-11-15 JP JP29641895A patent/JP3763028B2/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1223600A2 (en) * | 1998-06-15 | 2002-07-17 | Matsuhita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics |
| EP1223600A3 (en) * | 1998-06-15 | 2002-07-31 | Matsuhita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics |
| US6984159B1 (en) | 1998-06-15 | 2006-01-10 | Matsushita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics, and method and apparatus for producing the plasma display panel |
| US7040944B2 (en) | 1998-06-15 | 2006-05-09 | Matsushita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics, and method and apparatus for producing the plasma display panel |
| US7131879B2 (en) | 1998-06-15 | 2006-11-07 | Matsushita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics, and method and apparatus for producing the plasma display panel |
| US7172482B2 (en) | 1998-06-15 | 2007-02-06 | Matsushita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics, and method and apparatus for producing the plasma display panel |
| US7315120B2 (en) | 1998-06-15 | 2008-01-01 | Matsushita Electic Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics, and method and apparatus for producing the plasma display panel |
| US7422502B2 (en) | 1998-06-15 | 2008-09-09 | Matsushita Electric Industrial Co., Ltd. | Plasma display panel with superior light-emitting characteristics, and method and apparatus for producing the plasma display panel |
| JP2002047010A (en) * | 2000-07-28 | 2002-02-12 | Sumitomo Chem Co Ltd | Method of manufacturing barium complex metallic oxide powder |
| JP2002275464A (en) * | 2001-03-21 | 2002-09-25 | Kasei Optonix Co Ltd | Aluminate fluorescent substance, fluorescent paste composition and vacuum ultraviolet ray-excited light- emitting element |
| WO2022014521A1 (en) * | 2020-07-16 | 2022-01-20 | 住友化学株式会社 | Fluorescent substance |
| WO2022014522A1 (en) * | 2020-07-16 | 2022-01-20 | 住友化学株式会社 | Fluorescent substance |
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|---|---|
| JP3763028B2 (en) | 2006-04-05 |
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